c2s

erfa.c2s(p)[source]

Wrapper for ERFA function eraC2s.

Parameters

p : double array

Returns

theta : double array

phi : double array

Notes

The ERFA documentation is below.

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 e r a C 2 s
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P-vector to spherical coordinates.

Given:
   p      double[3]    p-vector

Returned:
   theta  double       longitude angle (radians)
   phi    double       latitude angle (radians)

Notes:

1) The vector p can have any magnitude; only its direction is used.

2) If p is null, zero theta and phi are returned.

3) At either pole, zero theta is returned.

Copyright (C) 2013-2019, NumFOCUS Foundation.
Derived, with permission, from the SOFA library.  See notes at end of file.